Shade holder for lighting fixtures



P 1931- R. w. SCHWEIKIER 1,801,113

. SHADE HOLDER FOR LIGHTING FIXTURES Filed March 11, 1929 2 Sheets-Sheet l April. 14, 1931. R. w. SCH'WEIKER I 3 SHADE HOLDER FGR LIGHTING FIXTURES Filed March 11, 1929 2 Sheets-Sheet 2 Patented Apr. 14, 1931 PATENT FFICE ROY W. SCHWEIKER, LANSDALE, PENNSYLVANIA SHADE HOLDER LIGHTING FIXTURES Application filed March 11, 1929, Serial No. 346,083.

Among the objects of the present invention are, the provision of an improved shade holder which will enable any shade at present on the market to be attached to a fixture pro- 5 vided with the present shade holder; iniproved means for connecting a shade to a lighting fixture with adaptability of the shade for turning to different positions without loosening or detaching the shade holder, which is of particular usefulness in side wall lighting fixtures; an improved shade holder which can be quickly and easily applied to the fixture without requiring the use of tools and which can be readily detached to enable 1 5 the shade to be removed; an improved shade holder which can be inexpensively stamped out of sheet metal and will require but slight modification of the fixture for'its adaptation thereto. 7

Further objects of the invention will appear more fully from the following specification wherein description is given of a practical embodiment thereof.

In the accompanying drawings Figure 1, is a vertical section, the shade being broken away;

2, is a front view of the canopy, without the shade, parts being broken away;

Fig. 3, is a cross section through the porcelain securing ring;

'Fig. 4, is a'froiit view'thereof;

5, is a rear elevation of the canopy; Fig. 6, is a cross section on the line 66 Fig.1;

Fig. 7, is a front elevation of the shade holder by itself;

Fig. 8, is a detail sectional perspective thereof, showing one of the cams or tracks, a notch, and retaining indentation; and

Fig. 9,19 a's ection'on' the line 99, Fig. 7.

My improvements may be applied to any lighting fixture, that shown and described being a side wall fixture and embodying improvements, not claimed herein, which are shown and described in my application Serial No. 337,638 and Patent No. 1,7 61,090, dated June 3, 1930.- r

The canopy appears at 1, being provided with the seats 2 for the ends of attaching 5 strap 3 by which the fixture may be connected to an outlet box. Screws 4 secure the canopy to the aforesaid strap 3.

The lamp socket comprises a porcelain body or base 5 and a metallic shell 6. The canopy is provided with an integral housing 7 forthe base 5. A cavity 8 which contains the base or body 5 has a bottom 9 provided with an opening 10 through which projects the screw threaded metallic shell 6. The lamp socket is prevented from dropping out by virtue of the base 5 bearing against the annular bottom 9. There isa counter-sink 11 which receives the reduced part 12 of the porcelain ring 13, said ring having internal screw threads to engage those on theshell 6.

Preferably, the base of the countersink and the inner end of the reduced part 12 are provided with corrugations or teeth or do) pressions and there is located between them a rubber gasket 14 which enables thering'13 to be screwed up tightly without danger of breakage of the parts, the corrugations preventing the ring from unscrewing.

The ring 13 preferably is provided with notches 15 to receive any suitable tool or implement or spanner for the purpose of screwing up or unscrewing the ring.

The foregoing parts maybe modified without departing from the principleof the present improvements which more particularly relate to the shade holder and the means for itsconnection to the fixture or to'the ring 18,

as will now appear.

Screws 16, preferably provided with tapered heads, are connected to the ring in any desired manner. A convenient and practical connection comprises nuts 17 embedded, or located within the ring as, for instance, by forming the ring with slots 18 to receive said nuts. The nuts have internal screw'threads to engage the shanks of the screws16 there being unthreaded holes 19 inthe'ring toreceive the shanks of the screws and to enable said screws to be adjusted so that their heads will be at any desired or necessary distance from the face of the ring 13f i The adjustment of the screws enables the shade holding ring, shown at 20, to' adequately co-operate with the shanks and heads of the screws, as will now appear.

tracks or cams 24, such The shade holding ring 20 has a slitted edge or is provided with suitable fingers, thus enabling the ring to be bent by the electrician so that it will properly conform to the neck of the shade 23. 1

As shown, the neck of the shade 23 fits around the ring 13 and against the outer part of the canopy. Thus, the shade is mounted so that it can be turned around to any desired position, which is desirable on a side wall fixture, particularly in loath rooms and similar locations. Furthermore, the adaptability of the shade holding ring 20 to be bent to conform to the shape of the shade 23, enables the present shade holder to be used in connection with any shade now on the market. This permits the selection from a wide range of shades to suit the requirements oi the installation and does away with the necessity for the shade and canopy to be spe-v cially fitted to each other.

The shade holding ring 20 is provided, intermediate the termini of the fianges 21, with inclined tracks or cam 24 having low and high points. There are'provided enlarged notches 25 adjacent the low points ot the notches enabling the shade holding ring 20 to be removed when they register with the screws 16 but immediately the ring 21 is turned, the cams or tracks 24 co-operate with the shanks of the screws 16 until the shanks finally reach the indented parts 26 which retain the ring against accidental turning once it has been thus tightened. s

The construction described causes the ring 7 21 to be tightly gripped and held against the outer face of the ring 13, where said ring 20 will remain, securely holding the shade 23 while permitting said shade to be rotated on the ring 13.

Inasmuch as the ened and the ring'20 bent or deformed, said ring maybe made to fit any neck of any shade on the market.

, If desired, in lieu of the indented parts 26, a plurality of corrugations or indentations may be employed at these points.

What I claim is 1. The combination with a lighting fixture having a lamp-holding socket, ofindependent adjustable clamping'screws carried by vided with cam track's screws 16 may be tightof the longitudinal axis of the socket, and a shade holding ring rotarily mounted on said fixture and provided with cams engaging said projections whereby turning of the ring tightens or loosens said ring.

3. The combi 'ation with a lighting fixture having a lamp-holding socket, otclamping pro ections carried by-the socket and eritend- 111g in the general direction of the longitudinal axis of the socket inthe region of the outer end part thereof, and a shade holding ring rotarily mounted on saidfixture and proengagedwith said pro ections, whereby the ring will betightened or loosened when it isturned.

4. The combination with a lighting fixture having a lamp-holding socket, of clamping projections extending in the general direction of the longitudinal axis of the socket, and a shadeholding ring rotarily mounted on said fixture and provided with internal cam tracks having notches for the free passage ofthe projections and also equipped with retalnlng means engageable with said projections to V has been turned to tighten said ring. 1

5. The combination with a lighting fixture having a lamp-holding shell, of a ring mounted on said shell, said ring: having an outer annular part, a shade holding ring rotarily mounted on said annular part, and adjustable locking members carried by the firstnamed r ng which engage with :said shade. holding rmg. v. V e V V 6. The combination with a lighting fixture having a lamp-holding shell, of a ring mounted on said shell, said ring having an outer annular part, and adjustably headed locking screws carried by said ring, of a shade'holdmg ring mounted to turn on said annul ar part of the first-named ring and having cam parts hold the ring on the fixture when it.

engaged with the shanks and heads of said nor w. scnwnnrnn. 

